Vol 24, No 5 (2020)

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Full Issue

Experimental and Theoretical Investigation
Comparative assessment of composites landing adaptation for dental restoration in experiments
Gushchin A.A., Adamchik A.A.

Background. In modern dental practice, there is a problem of complications after treatment of caries, such as the postoperative sensitivity of the tooth, formation of secondary caries, and caries complications in the form of pulpitis or periodontitis of the tooth. In addition, this problem exists despite the achievements in the production of high-quality composite filling materials, which are very popular among dentists worldwide. One of the problems that lead to complications after caries treatment is a violation of the integrity of the adhesive bond between the composite and the tooth tissue, which is manifested by a violation of the seal of restoration and the formation of a gap between the filling material and the tooth tissues. This in turn leads to the development of tooth sensitivity and the possibility of bacterial invasion between the filling material and the walls of the tooth, followed by the progression of the pathological process. In the scientific literature, there is evidence of the positive effect of preheating and vibration on the composite before its polymerization.

Aim. Additionally, the purpose of this study is to determine the effect of physical impact, such as heating and vibration, on the composite using ultrasound in order to improve the quality of the adhesive fixation of the composite filling material to the walls of the tooth.

Materials and methods. The study was conducted on the extracted teeth of patients. Based on this, we have proposed a method for the simultaneous thermo-vibration action on a non-polymerized composite directly in the formed tooth cavity to improve the physicochemical, including the adhesive, properties of light-curing composites.

Results of the study revealed a statistically significant positive effect of thermo-vibration on the composite, not only in comparison with the classical method of working with the composite at room temperature, but also with the method of preheating the composite in a furnace used for heating the composite.

Russian Journal of Dentistry. 2020;24(5):286-292
Comparison of the strength characteristics of direct and indirect dental restorations under uniaxial compression
Enina Y.I., V. A.V., Dorofeev A.E., Ershov K.A., Pustokhina I.G.

An urgent task in modern restorative therapeutic dentistry is to make a decision in each specific clinical case, which is justified not only from the esthetic and medical, but also from the economic, as well as the biomechanical and ergonomic points of view. According to many authors, the key to the successful restorative treatment of hard tissue defects of any genesis is to understand the etiological causes and conditions of their occurrence, as well as to assess the size of the defect and the level of material and technical base of modern dentistry.
Long-term results of esthetic restoration of teeth using the direct method with various composite materials indicated the admission of multiple errors and complications, such as inconsistency in the color and transparency of the filling; violation of the marginal adherence; and the appearance of marginal staining along the border of the composite material with the tooth tissues, both during and in various terms after treatment.
In contrast to the direct method of restoration, the ceramic inlay is made indirectly. This allows reducing polymerization shrinkage, which in turn improves marginal adherence and reduces the frequency of caries recurrence.

Russian Journal of Dentistry. 2020;24(5):293-296
Clinical Investigation
The analysis side оf the teleroentgenogram from pediatric patients with vertical disocclusions dentition III degree
Ali A.E., Vodolatsky V.M., Grigorian E.G.

Aim of the study was to study lateral TRG in 43 patients with grade III vertical disocclusion of the dentition at the age of 7 to 18 years.

Material and methods. Lateral telerentgenogram were used to study the angle indices SN-NL, SN-ML, NL-ML, showing the ratio of the upper and lower jaw relative to the base of the skull and relative to each other.

The highest values of the SN-NL angle were observed in children of 1 group at the age of 18 years — 9.0°, in 2 group at the age of 18 years — 9.3°, in 3 group at the age of 17 years — 8.9°. The lowest values of the SN-NL angle were observed in children of group 1 at the age of 7, 8, 10 years — 7.5°, in group 2 at the age of 7 years — 8.5°, in group 3 at the age of 7 years — 8.4°.

The highest values of the SN-ML angle were observed in children of group 1 at the age of 15, 16, 17, 18 years — 33°, in group 2 at the age of 18 years — 37°, in group 3 at the age of 17, 18 years — 36°. The lowest indices of the angle SN-ML was the children 1 age group 12 years — 31° in group 2 at the age of 11 — 33°, group 3, ages 11, 12, and 13 — 34°. The highest values of NL-ML — 34° angle were observed in children aged 17 years from group 1, in group 2 at age 17, 18 years — 33°, in group 3 at age 13, 14 and 18 years — 30°. In children of group 1 aged 7, 8, 11, 2 groups at the age of 9, 10 and 3 groups at the age of 8 years identified the least parameters of an angle NL-ML — 28°, 28°, 27°, respectively.

Results. As a result of the study, it was noted that in children with vertical dysocclusion of the dentition of the third degree, the angles SN-NL, SN-ML, NL-ML have high indicators, which characterizes the vertical type of skull growth.

Russian Journal of Dentistry. 2020;24(5):297-300
Structural features of the temporomandibular joint in patients with gnathic mesial occlusion
Mallaeva A.B., Drobysheva N.S.

The aim of the study was to evaluate the structural features of the temporomandibular joint in patients with a gnatic form of mesial occlusion of the dentition. Materials and methods. In studying the structural features of the facial skull in patients with gnatic mesial occlusion, the height of the condylar process was separately evaluated in the course of the study in order to avoid the incorrect measurement of the branch height in cases of degenerative changes in the condylar process. Results. The structural features of the temporomandibular joint were determined in 50 adult patients (aged 18–44 years old) using cone-beam computed tomography.
Сonclusion. Patients with gnathic mesial occlusion of the asymmetric group showed identical articular spaces (anterior and posterior) in the sagittal direction on both the deviating and non-deviating sides, suggesting that the bilateral relationship between the head and fossa may be as symmetrical as in patients with symmetry. However, the axial condylar angle had a bilateral difference only among patients in the asymmetric group; namely, it was significantly greater on the side of the deviating condyle.

Russian Journal of Dentistry. 2020;24(5):301-305
Organization of Healthcare Service
Interactive teaching methods in dentistry in post-graduate education, as a condition for stimulating cognitive activity
Musaev U.Y., Rizaev J.A.

The article presents new materials about active and interactive teaching methods in improving the quality and modernization of the modern medical education system. The information about the objects of research and innovative technologies of interactive training in the specialty “therapeutic dentistry” is presented. The stages of organizing an interactive educational process are outlined with the outlook for the knowledge gained, as well as improving the organization of the control system for teaching and mastering practical skills, organizing and conducting for the first time a master class with training in Uzbekistan, congresses and international scientific and practical conferences with the invitation of foreign dentists.

Russian Journal of Dentistry. 2020;24(5):306-311
Integral assessment of the population risk of generalized periodontal disease
Bekjanova O.E., Rizaev D.A., Rizaev E.A., Alimjanov K.D.

Introduction. The development and prevalence of generalized periodontitis is caused by a combination of many factors: climatic, geographical, gender, age, presence of somatic pathology, etc.

Aim. This study analyzes the population determinants of the risk of generalized periodontitis.

Material and methods. Epidemiological surveys of the population of the adult population of Uzbekistan aged 20 and more than 60 years were carried out. Using regression analysis, we determined the contribution of risk factors for the development of periodontal diseases to the presence/absence of disease in the population.

Results. In terms of impact on the occurrence of periodontitis, the factors are as follows: on the 1st place is the non-compliance with hygiene of the oral cavity, the contribution factor is 0.301 units; on the 2d — the presence of chronic somatic diseases, 0.252 units; on the 3rd — the predominance of carbohydrates in the diet, 0.252 units; on the 4th — low income increases the presence of periodontitis to 0,139 units; on the 5th — social conditions, 0.139 units; on the 6th — smoking, 0.106 unit; 7th — low social status that increases the risk of periodontitis in the population by 0.0524 units of measurement and on the 8th — male sex, leading to an increase in the prevalence of periodontitis in the periodontal diseases by 0.0185 units of measurement.

Conclusion. The data obtained allow us to calculate the load by risk factors. At the same time, in age groups, compared with the General sample, it changes from negative values in age groups up to and including 45 years and to positive values in elder people. Similarly, the additional risk of periodontitis due to the load of risk factors changes in the population.

Russian Journal of Dentistry. 2020;24(5):312-317
Help a Practical Doctor
Results of using the Xerostom rinse aid in the complex treatment of patients with xerostomia
Afanasiev V.V., Vinokurov N.S.

Introduction. Xerostomia is a permanent or temporary feeling of dryness of the oral cavity. It can be objective or subjective and is characterized by complaints of dryness of the oral cavity, discomfort when talking and eating, as well as a decrease in free saliva, which significantly impairs the quality of life. The diverse causes of xerostomia, including diseases of the salivary glands, long-term use of homeopathic, cardiac, etc. remedies, consequences of radiation therapy, etc.

Materials and methods. Treatment of patients with xerostomia is mainly symptomatic, using salivozameniteli. In the Russian Federation, various saliva substitutes are presented by foreign companies. Among them, stands out a set (line) of salivozamenitele Xerostom. Therefore, we conducted a study of the effectiveness of the rinse aid, and also studied its antibacterial properties in patients with true xerostomia.

Conclusion. It was found that the Xerostom rinse aid was effective in 70% of patients. At the same time, the rinse aid did not have antibacterial properties in relation to gram-positive aerobic S. Aureus and gram-negative anaerobic Klebsiella pneumonia.

Russian Journal of Dentistry. 2020;24(5):318-320
History of Medicine
The history of maxillofacial surgery in Russia (part 1)
Sysolyatin S.P., Sysolyatin P.G., Voevodin N.M., Zhuchkova D.V.

The role of the Siberian general surgical scientific school of Professor P. I. Tikhov of the Imperial Tomsk University, which influenced the formation and development of maxillofacial surgery in our country, and enriched domestic and world surgery is considered in this article.

Russian Journal of Dentistry. 2020;24(5):321-327
Justification of the effectiveness of hirudotherapy in dentistry
Abdullaeva A.I., Pustovaya E.P., Slonova V.M., Karnaeva A.S., Pilshchikova O.V., Gevorkyan A.A.

This article provides a systematic review of studies on the composition of leech saliva secretions, the method of hirudotherapy, and the results of hirudotherapy in complex treatment. The following databases were used to search for the study: Scopus, Web of Science, MedLine, and Global Health. When using known methods of treatment, there is often no stability of results, this is explained by the search for new drugs and methods for treating periodontitis. It is known that the secret of the salivary glands of the medical leech contains more than 100 biologically active substances. The therapeutic effect of hirudotherapy is associated with the mechanical discharge of blood flow and the action of a complex salivary gland secretion of a medical leech. The molecules that exist in leech saliva and are the most studied to date include active substances such as hyaluronidase, hirudin, Kalin, destabilase, bdellins, histamine-like substances, hirustazine, factor XA inhibitor, and collagenase. It is scientifically proven that hirudotherapy leads to a significant improvement in the clinical condition of periodontal tissues, is simple, accessible, and can be recommended for use in the practice of periodontists.

Russian Journal of Dentistry. 2020;24(5):328-331
Etiopathogenetic methods of treating patients with chronic inflammatory-destructive periodontal diseases
Garazha S.N., Grishilova E.N., Garazha I.S., Nekrasova E.F., S. H.F., Il'ina E.E., Hubaev T.S.

This article presents the etiopathogenetic-based methods of treating patients with chronic generalized inflammatory-destructive periodontal diseases — periodontitis, which are mostly multicomponent and are performed in stages. The comprehensive therapy of inflammatory-destructive periodontal diseases should include the identification of common and local endogenous and exogenous parodontopathogenic factors and disease predictors, with the aim of normalizing the microbioprofile in periodontal pockets, providing osteoregeneratory, biostimulating, and normalizing effects on the microhemocirculation, relying on the achievements of genetics and epigenetics, personalized, and meet the requirements of evidence.

Russian Journal of Dentistry. 2020;24(5):332-336
Modern prevention and treatment methods of jaw alveolitis
Tarasenko S.V., Ippolitov E.V., Muravev N.V., Diachkova E.Y.

This is an analysis of Russian and international scientific data about the modern aspects of jaw alveolitis prevention and treatment over the period from 2000 to 2020. Selection of the scientific literature was conducted in the Central Scientific Medical Library, electronic Medical library eLIBRARY.RU, and also on the database of medical publications PubMed. The review analyses clinical and experimental studies on various methods of drug therapy for patients with alveolitis in order to determine the most effective and modern method of therapy for this nosology.

Russian Journal of Dentistry. 2020;24(5):337-343
Comparative characteristics of conventional visual methods and instrumental digital methods for tooth color determination
Hasasna M.M., Akulovich A.V.

Shade matching is a challenging step and the major objective in esthetic and restorative dentistry. On many occasions, the production of the accurate target color will not be achieved due to errors in the registration of the target color, or errors in composing the appropriate color of the restoration in the dental laboratory. Thus, the accurate and correct shade matching of tooth and restoration is one of the most important quality criteria for the patient and the key to successful results for the dentist.

Conclusion: Spectrophotometers, colorimeters, intraoral scanners, and imaging systems are useful and relevant tools for tooth color measurement and analysis, and for the quality control of color reproduction. The combination of visual and instrumental methods of tooth color determination will complement each other, leading toward predictable esthetic results.

Russian Journal of Dentistry. 2020;24(5):344-354
Professor Tatiana G. Robustova: scientist, physician, teacher and person
Iordanishvili A.К., Serikov А.А.

The purpose of the study is in connection with the 90th anniversary of the outstanding scientist and clinician of the Honored Scientist of the Russian Federation, Doctor of Medical Sciences, Professor Tatyana Grigorievna Robustova to highlight her scientific, medical, pedagogical and social activities, to consider the formation of T.G. Robustova as a professional of the first magnitude in Russia, to present the main scientific areas of research in the field of maxillofacial surgery and dentistry, to note its personality characteristics.

Russian Journal of Dentistry. 2020;24(5):355-358
Mirgazizov Marsel Zakeevich (1935–2020)

Marsel Zakeevich Mirgazizov passed away - Doctor of Medical Sciences, Professor, Honored Scientist of the Republic of Tatarstan, Honored Dentist of Russia, Honorary Member of the International Academy of Pierre Fauchard, Member of the International Academy of Medical Materials and Implants with Shape Memory, a remarkable scientist with a broad outlook , an indomitable thirst for new knowledge and just a very good, intelligent person.

Russian Journal of Dentistry. 2020;24(5):359-360

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